Work unit



FIG. 1 is a perspective view of a work unit, showing my new design;

FIG. 2 is a front elevational view thereof in an open position;

FIG. 3 is a rear elevational view thereof in an open position;

FIG. 4 is a left side elevational view thereof:

FIG. 5 is a top plan view thereof in an open position;

FIG. 6 is a front elevational view thereof in a closed position;

FIG. 7 is a rear elevational view thereof in a closed position;

FIG. 8 is top plan view thereof in a closed position; and,

FIG. 9 is a left side view thereof in an open position.

I claim the ornamental design for a work unit, as shown and described.